Device for dyeing or washing carpets

ABSTRACT

An elongated cylindrical pressure vessel has a longitudinally extending door in the cylindrical wall of the vessel, through which a carpet can be introduced or removed. A bolt for securing the door is divided into at least three axially aligned portions each of which is wholly receivable in a socket in which it is also axially movable, at least one of such sockets being secured to the door, and at least one of such sockets being secured to the vessel. The bolt portions are movable in unison between a position in which each bolt portion is wholly received in its socket and a position in which at least two bolt portions are engaged both in a socket secured to the door and in a socket secured to the vessel.

O United States Patent ml 3,597,942

[72] Inventors Erich Grimme; 5 References Cited Leonhard Knierriem, bothof Erbach, UNITED STATES PATENTS Odenwald, Germany 2,291,463 7/1942Gerlach 68/210 [21] Appl. No. 840,781

. 2,368,899 2/1945 Taylor 16/176 [22] Filed July 10, 1969 3,071,9531/1963 Rand 68/209 [45] Patented Aug. 10, 1971 [73] AssigneeBruckner-Apparateban Michdmd' Gmb" 3.507.131 4/1970 Stanway 68/196Erhach, Odenwald, Germany Primary Examiner.lames A. Leppink [32]Priority July 18, 1968, July 18, 1968 4u0rneyMarshall & Yeasting [33]Germany [31] P 17 60 909.5 and? 1775 236.2

ABSTRACT: An elongated cylindrical pressure vessel has a longitudinallyextending door in the cylindrical wall of the vessel, through which acarpet can be introduced or removed. A bolt for securing the door isdivided into at least three axially [54] ga Y g 0R WASHING CARPETSaligned portions each of which is wholly receivable in a socket aims inwhich it is also axially movable, at least one of such sockets [52] US.Cl 68/196, being secured to the door, and at least one of such sockets16/ 176 being secured to the vessel. The bolt portions are movable in[51] Int. Cl D06f 17/00 unison between a position in which each boltportion is wholly [50] Field of Search 68/196, received in its socketand a position in which at least two bolt 232, 235, 237; 292/42, 171,256, 256.6, 256.5; portions are engaged both in a socket secured to thedoor and 16/147, 176 in a socket secured to the vessel.

I 1 I l Patented Aug. 10, 1971 3 Sheets-Sheet 1 Patented Au 10, 19713,597,942

3 Sheets-Sheet 2 Patented Aug. 10, 1971 3 Sheets-Sheet 5 r. mm...

lllllflll DEVICE FOR DYEING R WASHING CARPETS BACKGROUND OF THEINVENTION This invention relates to a device for dyeing or washingcarpets at high temperatures in an elongated cylindricalpressure vesselhaving a door for insertion and extraction of the carpet, the door beingsecurable by a bolt.

In known devices the door of the pressure vessel is secured by a longbolt, but the insertion and release of this require considcrable space.There are also frequent difficulties in inserting long closure bolts. t

' SUMMARY OF THE INVENTION The main object of the invention is toprovide a device of the type described which avoids these disadvantages,so that only a very small space is needed for inserting and releasingthe bolt, and the closure joint is easy to make and release.

According to the invention this object is achievedin that the bolt isdivided into-at least threeportions which can be moved axially inunison, so that in one end position each bolt portion is in engagementonly with the pressure vessel or with the door, while in the other endposition at least two bolt portions are in engagement with bothtbepressure vessel and the door.

According to a desirable further development of the invention, the doorextending overalmost the whole length of the,

vessel lies on the cylindrical periphery of the vessel. The forcesproduced by the pressure in the vessel are thus supported directly bythe door material, and the bolt closure device is substantially freed ofpressure.

BRIEF DESCRIPTIONOF THE DRAWINGS FIG. I is a schematic cross sectionthrough a dyeing device in accordance with the invention;

, closed.

DESCRIPTION OF THE PREFERRED EMBODIMENT The'elongated pressure vessel Iseen in FIGS. 1 and 2 is used for dyeing or washing carpets across theirwhole width at high temperatures. In the vessel 1 there are provided forexample a driven drum 2 and support and guide rollers 3 which maintainthe carpet 4 travelling through the treatment bath 5.

The pressure vessel 1 has a door 6 extending over almost the wholelength of the vessel, with its upper long side 7 hingedly connected tothe vessel wall and its lower long side 8 lockable to the wall of thevessel by a bolt device which will be explained in more detail withreference to FIGS. and 6.

As shown schematically in FIG. 1, door 6 when in the closed conditionlies exactly on the peripheral line of the vessel.

FIG. 4 shows the arrangement of a seal 9 for sealing the door 6 andvessel 1 (for example at the lower longitudinal side 8). The seal isdisposed within the cylindrical peripheral line of the vessel between aprojection 10 from the vessel 1 and a projection 11 from the door 6. Thecylindrical peripheral line of the vessel 1, on which'the door islocated, is indicated by the area of support I4 (the same applies forthe other support 13 support I4 is thus let in to vessel 1 to someextent. The

line joiningthe two tie rods I5 is indicated by reference 16 in FIG. 3.According to the invention this connecting line 16 coincides with thecentroidal axis of support 14.

In FIG. 3 there are also shown two points A and B, which lie on the twolongitudinal sides of the vessel aperture. Together with the line 17joining them, these points A and B define a segment of a circledetermined by the vessel aperture. The centroidal axis of this segmentis indicated at C. According to the invention this centroidal axis alsolies on the line 16 connecting the two tie rods 15 (and therefore alsolies on the centroidal axis of support 14).

This construction ensures that the supports 13 and 14 can absorb theforces caused by internal pressure in the container in the area of theends of the vessel aperture (i.e. where there is no casing sheet toabsorb the forces) in such manner that no appreciable bending or torqueforces are applied to the supports. The two supports may consequently beof relatively small dimensions.

The door 6, sealed on all four sides, which is hingedly connected to thevessel along its upper long side 7, can be bolted to the vessel at itslower long side 8. The door is however free at the two ends, adjacentsupports 13 and 14. In this way there is produced a staticallydetermined system, which simplifies the dimensioning.

The bolting of door 6 to the vessel 1 (adjacent the lower long side 8 ofdoor 6) is shown in detail in FIGS. 5 and 6.

Door 6 is provided with weblike projections 25, while the vessel 1 hascorresponding weblike projections 26 laterally offset from theprojections 25 on door 6.

The projections 25, 26 have support sockets 27 wherein are movablyhoused bolt portions 281:, 28b-28n. With the excep- Adjacent each end ofthe bolt device formed by the bolt portions 28a-28n there is disposed asimply acting operating means, which engages the bolt device axially.The two operating means are schematically represented by the arrows 29,30 in FIGS. 5 and 6.

When the bolt device is in the left-hand end position shown in FIG. 5,each bolt portion is in engagement with only one of the two elements(vessel 1 and door'6) to be joined. The bolt portion 28b for instance isonly in engagement with the weblike projection 25 of door 6 while thenext bolt portion 280 only forms a positive joint with the weblikeprojection 26 of vessel 1. In this position of the bolt .device, thedoorcan readily be tilted about its support line (the upper long side 7,see FIG. 1) and the vessel thereforeopened.

If the bolt device shown in FIGS. 5 and 6 is to be locked and door 6thus firmly connected to vessel 1, an axial pressure is exerted on thebolt device by the left-hand operating means (arrow 29), so that thebolt portions 28a28n move into their right-hand end position. Thisposition is determined by the foremost'bolt portion 28n abutting againsta stop 31. As seen from FIG. 6, in this right-hand end position eachbolt portion (apart from portion 28n) is in engagement with both theelements to be joined (vessel 1 and door 6); bolt portion 28b forinstance is thus positively connected both with projection 25 on door 6and projection 26 on vessel 1.

The bolted joint can therefore be closed or opened by a relatively smallaxial displacement of the bolt device. Opening is effected in acorresponding manner, with the right-hand operating means (arrow 30)pushing the bolt device into its left-hand end position. The latter isdetermined by bolt portion 28a abutting against a stop 32.

The two operating means indicated by arrows 29 and 30 may for instancecomprise pneumatic or hydraulic pressure cylinders.

The operating means (arrows 29 and 30) may instead consist of screwspindles. This simpler mechanism is adequate for cases (e.g. the pivotalmounting of door 6), wherein the bolted joint is usually made only onceand released only in rare instances.

in order to prevent the bolt portions falling out of the projections 25,26 when door 6 is open, the bolt portions are preferably mounted inthese projections in such a manner that they can only make the axialmovements needed to bolt and unbolt the doorv The ends 33 of theindividual bolt portions 28a-28n, which come into contact with adjacentbolt portions, are rounded, preferably with a part-spherical shapeand/or a marked marginal chamfer. This ensures that adjacent boltportions can move readily against each other i.e. without much friction,while the door is being opened and shut. it also ensures easyintroduction of the bolt portions into the weblike projections 25, 26during closing of the operating means 29.

We claim:

1. A device for dyeing or washing carpets at high temperatures,comprising an elongated cylindrical pressure vessel having alongitudinally extending door in the cylindrical wall of the vessel,through which a carpet can be introduced or removed, wherein theimprovement comprises a bolt for securing the door, which is dividedinto at least three axially aligned portions each of which is whollyreceivable in a socket in which it is also axially movable, at least oneof such sockets being secured to the door, and at least one of suchsockets being secured to the vessel, the bolt portions being movable inunison between a position in which each bolt portion is wholly receivedin its socket and a position in which at least two bolt portions areengaged both in a socket secured to the door and in a socket secured tothe vessel, the door being a section of a cylinder and coinciding in itsclosed position with the axis of each of the sockets and with thecylindrical wall of the vessel.

2. A device according to claim I wherein means for engaging and axiallydisplacing the divided bolt are provided adjacent each end of thedivided bolt.

3. A device according to claim I wherein the contacting ends of the boltportions are rounded.

4. A device for dyeing or washing carpets at high temperatures,comprising an elongated cylindrical pressure vessel having alongitudinally extending door in the cylindrical wall of the vessel,through which a carpet can be introduced or removed, wherein theimprovement comprises supports secured to the vessel which extend aroundthe periphery of the vessel along opposite ends of the door and areconnected by tie rods extending longitudinally of the vessel, a bolt forsecuring the door, which is divided into at least three axially alignedportions each of which is wholly receivable in a socket in which it isalso axially movable, at least one of such sockets being secured to thedoor, and at least one of such sockets being secured to the vessel, thebolt portions being movable in unison between a position in which eachbolt portion is wholly received in its socket and a position in which atleast two bolt portions are engaged both in a socket secured to the doorand in a socket secured to the vessel.

5. A device according to claim 4 wherein the supports have a commoneentroidal axis which coincides with the eentroidal axis ofa segment ofacircle defined by the door and which lies in a plane passing through twotie rods connecting the supports.

1. A device for dyeing or washing carpets at high temperatures,comprising an elongated cylindrical pressure vessel having alongitudinally extending door in the cylindrical wall of the vessel,through which a carpet can be introduced or removed, wherein theimprovement comprises a bolt for securing the door, which is dividedinto at least three axially aligned portions each of which is whollyreceivable in a socket in which it is also axially movable, at least oneof such sockets being secured to the door, and at least one of suchsockets being secured to the vessel, the bolt portions being movable inunison between a position in which each bolt portion is wholly receivedin its socket and a position in which at least two bolt portions areengaged both in a socket secured to the door and in a socket secured tothe vessel, the door being a section of a cylinder and coinciding in itsclosed position with the axis of each of the sockets and with thecylindrical wall of the vessel.
 2. A device according to claim 1 whereinmeans for engaging and axially displacing the divided bolt are providedadjacent each end of the divided bolt.
 3. A device according to claim 1wherein the contacting ends of the bolt portions are rounded.
 4. Adevice for dyeing or washing carpets at high temperatures, comprising anelongated cylindrical pressure vessel having a longitudinally extendingdoor in the cylindrical wall of the vessel, through which a carpet canbe introduced or removed, wherein the improvement comprises supportssecured to the vessel which extend around the periphery of the vesselalong opposite ends of the door and are connected by tie rods extendinglongitudinally of the vessel, a bolt for securing the door, which isdivided into at least three axially aligned portions each of which iswholly receivable in a socket in which it is also axially movable, atleast one of such sockets being secured to the door, and at least one ofsuch sockets being secured to the Vessel, the bolt portions beingmovable in unison between a position in which each bolt portion iswholly received in its socket and a position in which at least two boltportions are engaged both in a socket secured to the door and in asocket secured to the vessel.
 5. A device according to claim 4 whereinthe supports have a common centroidal axis which coincides with thecentroidal axis of a segment of a circle defined by the door and whichlies in a plane passing through two tie rods connecting the supports.